active transportation and demand management...requirements for atm system verification methods for...
TRANSCRIPT
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The Future of Transportation -2010 APWA Annual Congress and Exposition
Webinar: Active Traffic Management (ATM)
Implementation and Operations GuidanceOctober 17, 2017
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Federal Highway Administration Office of Operations – Transportation Management
Agenda
HousekeepingIntroductionsOverview of Active Transportation and Demand Management (ATDM)ATM Implementation and Operations GuidanceQuestion and answer
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Federal Highway Administration Office of Operations – Transportation Management
Housekeeping
Participants’ phone lines will be muted during the webinar.If you have any questions enter them in the “Questions” pane at any time during the presentation. Contact information for the presenters will be provided at the conclusion of the webinar.
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Federal Highway Administration Office of Operations – Transportation Management
Introduction
This webinar was developed as part of a project funded by the Federal Highway Administration.Thanks to the National Operations Center of Excellence for hosting today’s event.Thank you for your participation in today’s webinar.
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Federal Highway Administration Office of Operations – Transportation Management
Today’s Speakers
Vinh Dang, P.E.Freeway OperationsWashington State Department of Transportation
Beverly Kuhn, Ph.D., P.E., PMPSenior Research EngineerTexas A&M Transportation Institute
James Colyar, P.E.Transportation SpecialistFHWA Office of Operations
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Federal Highway Administration Office of Operations – Transportation Management
Purpose of Today’s Webinar
Provide an overview of a recently-developed implementation and operations guidance which agencies can use to deploy Active Traffic Management (ATM) in their regions. Topics include:
Context of ATM implementation and operations and use by agencies.Overview of ATM concepts and strategies.Overview of the critical issues included in the ATM implementation and operations guidance.Experiences from a recent ATM deployment.
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Federal Highway Administration Office of Operations – Transportation Management
Overview of Active Transportation and Demand Management
What is Active Management?Goal of the ATDM ConceptATDM Throughout the Trip ChainWhat does ATDM include?FHWA’s ATDM Program
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Federal Highway Administration Office of Operations – Transportation Management
What is Active Management?
The fundamental concept of taking a dynamic approach to a performance based process.
Active Management
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Federal Highway Administration Office of Operations – Transportation Management
Goal of ATDM Concept
Attain the capability to dynamically monitor, control, and influence travel, traffic, and facility demand of the entire transportation system and over a traveler's entire trip chain.
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Federal Highway Administration Office of Operations – Transportation Management
ATDM Throughout the Trip Chain
DestinationChoice
Origin Destination
Time of DayChoice
ModeChoice
RouteChoice
Lane/FacilityUse/Choice
ATDM approaches provide travelers with choices throughout the trip chain leading to network performance optimization and
increased efficiency.
Key Takeaway: Active management occurs before, during, and at the end
of the trip chain.
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Federal Highway Administration Office of Operations – Transportation Management
What does ATDM include?
• Active Demand Management (ADM): A suite of strategies intended to reduce or redistribute travel demand to alternate modes or routes that incentivizes drivers by providing rewards for travelling during off peak hours with less traffic congestion.
• Active Traffic Management (ATM): A suite of strategies that actively manage traffic on a facility.
• Active Parking Management (APM): A suite of strategies designed to affect the demand on parking capacity.
Examples of ATDM Implementation StrategiesADM Comparative multi-modal travel times, dynamic ride-sharing, pricing, and incentive approaches.
ATM Dynamic speed limits, dynamic shoulder use, queue warning, dynamic lane assignment, others.
APM Parking pricing, real-time parking availability and reservation systems.
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Federal Highway Administration Office of Operations – Transportation Management
FHWA’s ATDM Program
Increase awareness and understanding of ATDM.Develop, test, and evaluate strategies.Provide tools and methods for performance analyses. Provide tools and methods for benefit/cost analyses.Train agencies to deploy effective ATDM systems.
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Federal Highway Administration Office of Operations – Transportation Management
Overview of FHWA ATM Implementation and Operations Guidance
FHWA Team, Contractor Project Team, and External Advisory Panel.Project objectives and activities.ATM Guide context and objectives.Overview of ATM Guide chapters and content.
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Federal Highway Administration Office of Operations – Transportation Management
FHWA Team
James Colyar (GTM) Jim HuntJimmy ChuGreg Jones
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Federal Highway Administration Office of Operations – Transportation Management
Contractor Project Team
Battelle– Bill Perez, PM
Texas A&M Transportation Institute (TTI)– Beverly Kuhn– Nick Wood– Kevin Balke– Jerry Ullman
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Federal Highway Administration Office of Operations – Transportation Management
External Advisory Panel
Vinh Dang, Washington State Department of TransportationPaul Keltner, Wisconsin Department of TransportationMichael Marsico, New York City Department of TransportationShital Patel, Regional Transportation Commission of Southern NevadaKamal Suliman, Virginia Department of TransportationRaj Ponnaluri, Florida Department of Transportation
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Federal Highway Administration Office of Operations – Transportation Management
Project Objectives and Activities
Produce a Guide for agencies interested in implementing ATM in their region, as well as for agencies that have implemented ATM and are interested in guidance on operating their ATM systems and strategies.
Investigate current and best practices, lessons learned, and future trends.Prepare the ATM Implementation and Operations Guide.Prepare an informational brief to create broad awareness of the ATM Implementation and Operations Guide.Prepare and conduct a national webinar.
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Federal Highway Administration Office of Operations – Transportation Management
The ATM I&O Guide Context
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Scope
Phase
Multi-Strategy Resources
Single Strategy Resources
Planning Design Implementation Operations and Maintenance
Use of Freeway Shoulders for Travel — Guide for Planning, Evaluating, and Designing Part-Time Shoulder Use as a Traffic
Management Strategy
Ramp Metering: A Proven,Cost-Effective Operational Strategy
NCHRP 3-114: Planning and Evaluating Active Traffic Management Strategies
Active Traffic Management
Feasibility and Screening
Guide
Active Transportation Management
Implementation and Operations
Guide
Guidelines for the Use of Variable Speed Limit Systems in Wet
Weather
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Federal Highway Administration Office of Operations – Transportation Management
ATM Guide Objectives
Develop Guide to enable agencies to make informed and sound engineering decisions regarding implementing and operating ATM systems and strategies. Intended for agencies interested in implementing ATM in their region, as well as for agencies that have implemented ATM and are interested in guidance on operating their ATM systems and strategies.
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Federal Highway Administration Office of Operations – Transportation Management
ATM Guide Objectives
Highlight best practices, lessons learned, and case studies as well as guiding principles, resources, key questions, and issues to consider when implementing ATM. The guidelines are not intended to focus on how to plan for ATM deployment, but rather to focus on the next phase of implementing ATM and subsequently operating ATM systems and strategies.
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Federal Highway Administration Office of Operations – Transportation Management
Use of Guide
Implementing ATM in a region.Operating ATM systems more effectively.Incorporate ATM into overall TSMO program.Variety of potential benefits.
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Federal Highway Administration Office of Operations – Transportation Management
ATM Guide Chapters
1 – Introduction2 – Planning and Organizational Considerations3 – Design Considerations4 – Implementation and Deployment5 – Operations and Maintenance6 – Final Remarks7 – References
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Federal Highway Administration Office of Operations – Transportation Management
Chapter 1 – Introduction
1.1 – Overview, Goals, Intent, and Audience1.2 – Overview of ATM Strategies1.3 – ATDM, ATM, and TSMO1.4 – Systems Engineering1.5 – Chapters at a Glance
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Federal Highway Administration Office of Operations – Transportation Management
ATM Strategies In Guide
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Source: Adapted from NCHRP 03-114
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Federal Highway Administration Office of Operations – Transportation Management
Early Adopter – WSDOT
Seattle, Washington– I-5– SR 520– I-90
Branded “Smarter Highways.”Variable speed limits.Dynamic lane use control.
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Source: Texas A&M Transportation Institute
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Federal Highway Administration Office of Operations – Transportation Management
Early Adopter – WY DOT
I-80 between Laramie and Rawlins.Address weather-related closures.– Severe weather.– High winds.
Rural application.Monitoring road conditions, wind, surface and atmospheric conditions, speeds.
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Source: Wyoming Department of Transportation
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Federal Highway Administration Office of Operations – Transportation Management
ATM Strategy Details
NameAcronymDefinitionOperational scenarios (e.g., recurring congestion, work zones, incidents, directional shift, etc.).Application geography– Limited access facilities– Arterials– Interchanges and ramps
Examples and links to resources.
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Federal Highway Administration Office of Operations – Transportation Management
ATDM, ATM, and TSMO
ATDM – Active Demand Management– Active Traffic Management– Active Parking Management
Active Management CycleTSMO– Includes strategies that are dynamic, predictive,
proactive, performance-driven, continuously monitored, and supply and demand oriented.
Active Management
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Federal Highway Administration Office of Operations – Transportation Management
Systems Engineering
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Federal Highway Administration Office of Operations – Transportation Management
Chapter 2 – Planning and Organizational Considerations
2.1 – Planning for ATM Operations2.2 – Organizational Capability for ATM Operations2.3 – Setting Objectives and Performance Measures for ATM2.4 – Analysis, Modeling, and Simulation2.5 – Programming and Budgeting
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Federal Highway Administration Office of Operations – Transportation Management
Objectives-Driven, Performance-Based Approach
Regional Goals
Operations Objectives
Performance Measures
Management and Operations Strategies
Investment and Implementation
Monitoring and Evaluation
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Federal Highway Administration Office of Operations – Transportation Management
Organizational Capability for ATM Operations
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• Activities and relationships ad hoc
• Champion-driven
Performed (Level 1)
• Process developing• Staff training• Limited accountability
Managed (Level 2)
• Process documented• Performance measured• Organization/partners
aligned• Program budgeted
Integrated (Level 3)
• Performance-based improvement
• Formal program• Formal partnerships
Optimized (Level 4)
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Federal Highway Administration Office of Operations – Transportation Management
Setting Objectives and Performance Measures for ATM
Objectives and performance measures for each strategy.SMART: Specific, measurable, attainable, realistic, and time-bound.Travel time reliability.Congestion management.Safety.Sustainability and livability.
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Federal Highway Administration Office of Operations – Transportation Management
Additional Planning
Analysis, Modeling, and Simulation– Mobility– Safety– Environmental– Benefit-Cost
Programming and Budgeting
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Federal Highway Administration Office of Operations – Transportation Management
Chapter 3 – Design Considerations
3.1 – Concept of Operations3.2 – Requirements3.3 – Design Elements3.4 – Performance-Based Practical Design3.5 – Technology, Procurement, and Testing
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Federal Highway Administration Office of Operations – Transportation Management
Concept of Operations
ScopeReference ResourcesUser-Oriented Operation DescriptionOperational NeedsSystem OverviewOperational and Support EnvironmentsOperational ScenariosSummary of Impacts
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Federal Highway Administration Office of Operations – Transportation Management
RequirementsFunctional requirementsPerformance requirementsScope of the systemReference documentsRequirements for ATM systemVerification methods for requirementsSupporting documentationTraceability matrixGlossary of terms, acronyms, and definitions
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Federal Highway Administration Office of Operations – Transportation Management
Design Elements
Civil Design Elements– Traffic Control Devices– Geometrics– Emergency Pull-Offs
Technology Elements– Controllers and Software– Detection and CCTV– Communications– Control Signals, DMS, and Beacons
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Federal Highway Administration Office of Operations – Transportation Management
Infrastructure Design
Shoulder PavementFixed ObjectsVertical ClearanceDrainage TreatmentRumble StripsDesign Exception ProcessTraffic Control DesignMUTCD Experimental Approval Process
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Source: Washington State Department of Transportation
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Federal Highway Administration Office of Operations – Transportation Management
ITS Design
HardwareConnectivityDataSoftware design and integration
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Source: Washington State Department of Transportation
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Federal Highway Administration Office of Operations – Transportation Management
Procurement and Testing
Software Delivery Models– In-House– External Developer– Interface with
Existing Software
Testing of equipment
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Source: Washington State Department of Transportation
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Federal Highway Administration Office of Operations – Transportation Management
Procurement Lessons Learned
ATM requires more precision and skill to implement.Critical to have durable, high-quality signs.ATM should supplement traffic management.Continuous communication between project managers and software developers.Establish requirement traceability matrix at the onset.Advance design beyond 30% during development of design-build procurement documents.
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Federal Highway Administration Office of Operations – Transportation Management
Chapter 4 – Implementation and Deployment
4.1 – Construction and Scheduling4.2 – Legal Issues4.3 – Stakeholder Engagement, Public Outreach, and Involvement
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Federal Highway Administration Office of Operations – Transportation Management
Construction and Scheduling
Design-BuildDesign-Bid-BuildConstruction Management at RiskPublic-Private PartnershipAdvantages vs. DisadvantagesCoordinationSchedule
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Federal Highway Administration Office of Operations – Transportation Management
Legal Issues
Legality of Strategies: Shoulder use, dynamic speed limits.Enforcement strategies.Operating policies related to operator validation.Need for additional staffing and/or equipment.
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Federal Highway Administration Office of Operations – Transportation Management
Stakeholder Engagement, Public Outreach, and Involvement
Identifying stakeholders and team.Engagement, outreach, and involvement.Lessons Learned.– Provide information on whether strategy is worthwhile.– Consider travelers as allies and advocates.– Use a broad range of dissemination tools and mechanism.– Share successes.– Consistent messages across all levels of an organization.– Communication early and often.
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Federal Highway Administration Office of Operations – Transportation Management
Stakeholder Engagement, Public Outreach, and Involvement
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Source: Washington State Department of Transportation
Source: Virginia Department of Transportation
Source: Highways England
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Federal Highway Administration Office of Operations – Transportation Management
Chapter 5 – Operations and Maintenance
5.1 – Activation Thresholds and Performance Monitoring5.2 – Performance Evaluation5.3 – Maintenance5.4 – Incident Management5.5 – Enforcement5.6 – Costs
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Federal Highway Administration Office of Operations – Transportation Management
Thresholds and Performance Monitoring
Active management processAutomated systemsManual systemsHybridThresholds and data sets requiredTypical measures by strategyUse performance monitoring to drive active management.
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Active Management
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Federal Highway Administration Office of Operations – Transportation Management
Performance Evaluation
Longer-term evaluation of performance.Collect performance data over an extended period of time to determine overall benefits.
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Source: Texas Department of Transportation
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Federal Highway Administration Office of Operations – Transportation Management
Maintenance
Understand elements and relative cost range.Some strategies may have unique maintenance considerations.– Amount of field equipment.– Detection issues.– Equipment and proximity to traveled way.– Supporting signage.
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Federal Highway Administration Office of Operations – Transportation Management
Incident Management and Enforcement
Incident Management Activities– Dedicated service patrols.– Stationed tow trucks.– Utilize dynamic shoulder use in incident management.– Emergency refuge areas.
Enforcement– Engage law enforcement early in the implementation
process.– Process for enforcement.– Adjudication support.
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Federal Highway Administration Office of Operations – Transportation Management
CostsAccessibility to federal funding programs.Incorporation of strategies and operational costs in capital projects.– System integration.– Telecommunications.– Reconstruction of buildings or structures housing
components.– Control/management center and system
hardware/software.– Infrastructure-based ITS improvements.– Signage and signals.
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Federal Highway Administration Office of Operations – Transportation Management
Chapter 6 – Final Remarks
6.1 – Impact of Connected and Automated Vehicles on ATM6.2 – Uses of Guide by Transportation Agencies
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Federal Highway Administration Office of Operations – Transportation Management
Impact of Connected and Automated Vehicles on ATM
CV and AV can provide data to support operational strategies.Successful demonstration at the intelligent network flow optimization (INFLO) prototype system can deliver queue warning and speed harmonization messages in-vehicle.Simulation showed that that dynamic speed harmonization and queue warning has positive impact on system operations in reducing magnitude of shockwaves.Data may impact algorithms.
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ATM in Washington State
Vinh Q. Dang, P.E.Freeway Ops Eng., NW Region Freeway Ops
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Traffic management
• Ramp metering – Peak hours operation, bottle neck algorithm
• Reversible/express lane operation on I-5 – manual operation and on fixed schedule.
• Reversible lane operation using lane control signal X and ↓ on I-90
• TMC and staffing for system monitoring.
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Capacity enhancement
• Complete I-90 connection to downtown Seattle – comm. system
• HOV / managed lane program -increased person throughput.
• Incident response program –capacity recovery.
• Interagency coordinated operation –foundation for ICM.
• Open up shoulder as storage lane during ramp metering operation.
• Expand hour of TMC operation
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Responsive management
• Variable speed limit on I-90 –weather responsive.
• Enhance ramp metering –Fuzzy logic.
• Further deployment of Variable speed late 90 – traffic responsive.
• Pilot HOV/HOT lane on SR 167 – begin of the congestion pricing era.
• Expand hour of TMC operation.
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Proactive management• Full ATM on I-5,I-90, SR 520
- Queue detection/warning- Speed transitioning- Junction warning- Lane control signaling
• Automation of ramp metering• Remote/automated EL operation• More ICM strategies deployed• Congestion pricing – variable toll
- SR 16, SR 520 Bridge crossing- SR 167 HOT lane- I-405 Express /Toll lane
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Full ATM corridors• I-5 NB only – 8/10/10
- 7 mi / 15 gantries / 97 signs- $23 mil – AWT mitigation
• SR 520 – 11/16/11- 8 mi. / 19 gantries / 70 signs- $20 mil – UPA fund
• I-90 – 6/8/11 & 5/18/12- 11 mi. / 25 gantries / signs- $22 mil – UPA fund
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Typical gantry and sign layout
• Gantry over one direction - Exclusively on I-5- Some locations on I-90 and SR 520 where cross sections are wide
• Gantry over both direction- Mostly on compact cross section on SR 520
• Bridge over crossing as gantry• Why ½ mile spacing?
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Typical sign graphics
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Comprehension and Compliance
Under normal operating condition• No violation of red X.• Initial confusion on the
posted speed limits. Operating speed is within the 85th percentile speed in the speed range 35+ MPH
• Drivers vacated the lane approaching the merge sign or the junction warning sign.
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Maintenance and Operation staffing
• Expanded hour of operation –added 3 FTE to the TMC.
• VMS Inventory increased from 70 to 360 – added 2 FTE and 1 boom truck to Maintenance.
• Re-organization - transitioning maintenance staff into operation. Union challenges.
• Low learning curve – operator participated throughout the entire software development.
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Automatic algorithms• Running in the background 24/7.• Monitor flow and detect congestion.• Activate junction warning.• Activate ramp metering.• Activate speed transitioning.• Activate routing VMS• Different speed limit between HOV
and GP.
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Enhanced merging
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I-90 Eastbound at Eastgate: Increased throughput:
HOV Mainline Lane 3
Mainline Lane 2 Mainline Lane 1
EB Onramp Total
- Automatic on when ramp demand is high and freeway is congested.
- Mainline traffic vacate lane 1 to leave room for ramp demand.
- Approaching traffic accept shorter gap thus increase through put.
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ATMS in TMC operation
• System in auto mode
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ATMS in TMC operation
• System in auto mode• Operator opens the ATM
control panel.
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ATMS in TMC operation
• System in auto mode• Operator opens the ATM
control panel.• Clicks on the two lane control
signs over the blocked lane just upstream from blockage.
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ATMS in TMC operation
• System in auto mode• Operator opens the ATM
control panel.• Clicks on the two lane control
signs over the blocked lane just upstream from blockage.
• Clicks preview.
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ATMS in TMC operation
• System in auto mode.• Operator opens the ATM
control panel.• Clicks on the two lane control
signs over the blocked lane just upstream from blockage.
• Clicks preview.• Clicks confirm.• LCS segments override 3
gantries. The remaining gantries are available for all other automatic processes.
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ATMS field deployment
- Incident occurred in the add/drop lane.
- Vehicles start merging as they see the yellow merge arrow
- Speed is stop and go – travel time is a minute or two between gantry - vehicles continues to inch past the red X until they find gap to merge.
- Empty lane syndrome
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Results?• Good compliance - people are
following the signs.• Reduced speed differential
across lanes.• Reduced stop and go.• Reduced abrupt evasive
maneuvers.• Reduced collision frequency
and severity.• Increased throughput
approaching on-ramp.
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2 year and 3 year after
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Hard Shoulder Running
Static approach:Restripe to narrower lane and wider shoulder.Open shoulder up as travel lane during congestion –low speed.
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Hard Shoulder Running
• ATM-lite • Q-detection algorithm• Transition interval• Ready for automation
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Hard Shoulder RunningBEFOREFebruary-April 2017
AFTERFirst 3 months
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Operation scenario
• Disable vehicle in shoulder
• Segment closure
• Disable vehicle in emergency pull-out
• Open with caution
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(re)Design for operation - PracticalCurrent standard X-section: 50’-52’
rest in Red X
Lt shoulder lane 3 lane 2 lane 1 Rt shoulder4’-6’ 12’ 12’ 12’ 10’
Proposed new X-section: 48’-52’Lt shoulder ln 3 ln 2 ln 1 Rt shoulder2’-4’ 11’ 11’ 11’ 13’-15’
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ICM effort -Load balancing• Route choice and diversion.• Most effective for major incident.• Network junctions – constraints as
well as opportunities.• Coordinated ramp metering and
arterial signal operation.
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Where are we heading
• Design for operation – Practical- Flexible lane and shoulder combination.- Dual queue lines storage on-ramp.- Freeway/arterial integration at network junction.- Ramp meter ready – from data station to metering.
• Explore deployment or delivering ATM strategies via emerging technologies and initiatives – apps, crowdsourcing, in-vehicle devices, connected vehicles
• Continue the proven steps: plant the seed for demand management and integrated corridor management.
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Federal Highway Administration Office of Operations – Transportation Management
Question and Answer Session
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Federal Highway Administration Office of Operations – Transportation Management
Website:– Lessons Learned– Informational Briefs– Research and Publications
Knowledge and Technology Transfer
http://ops.fhwa.dot.gov/atdm/index.htm
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Federal Highway Administration Office of Operations – Transportation Management
Points of Contact for Follow Up Questions
Name Org. Email PhoneJames Colyar FHWA [email protected] (360) 753-9408Jim Hunt FHWA [email protected] (717) 221-4422Greg Jones FHWA [email protected] (404) 562-3906Beverly Kuhn TTI [email protected] (979) 862-3558Vinh Dang WSDOT [email protected] (206) 410-0003
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Federal Highway Administration Office of Operations – Transportation Management
Thanks for joining us!
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